/* textarea高度自适应 */
$.fn.autoHeight = function() {

	function autoHeight(elem) {
		elem.style.height = 'auto';
		elem.scrollTop = 0; // 防抖动
		elem.style.height = elem.scrollHeight + 'px';
	}

	this.each(function() {
		autoHeight(this);
		$(this).on('keyup', function() {
			autoHeight(this);
		});
	});

}
$('textarea[autoHeight]').autoHeight();

$("textarea").css("resize","none");
console.log("wo lail a");